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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.search.aggregations.bucket.terms;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.search.aggregations.BucketOrder;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* Common superclass for results of the terms aggregation on mapped fields.
*/
public abstract class InternalMappedTerms<A extends InternalTerms<A, B>, B extends InternalTerms.Bucket<B>> extends InternalTerms<A, B> {
protected final DocValueFormat format;
protected final int shardSize;
protected final boolean showTermDocCountError;
protected final long otherDocCount;
protected final List<B> buckets;
protected Map<String, B> bucketMap;
protected long docCountError;
protected InternalMappedTerms(String name, BucketOrder order, int requiredSize, long minDocCount,
List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData, DocValueFormat format, int shardSize,
boolean showTermDocCountError, long otherDocCount, List<B> buckets, long docCountError) {
super(name, order, requiredSize, minDocCount, pipelineAggregators, metaData);
this.format = format;
this.shardSize = shardSize;
this.showTermDocCountError = showTermDocCountError;
this.otherDocCount = otherDocCount;
this.docCountError = docCountError;
this.buckets = buckets;
}
/**
* Read from a stream.
*/
protected InternalMappedTerms(StreamInput in, Bucket.Reader<B> bucketReader) throws IOException {
super(in);
docCountError = in.readZLong();
format = in.readNamedWriteable(DocValueFormat.class);
shardSize = readSize(in);
showTermDocCountError = in.readBoolean();
otherDocCount = in.readVLong();
buckets = in.readList(stream -> bucketReader.read(stream, format, showTermDocCountError));
}
@Override
protected final void writeTermTypeInfoTo(StreamOutput out) throws IOException {
out.writeZLong(docCountError);
out.writeNamedWriteable(format);
writeSize(shardSize, out);
out.writeBoolean(showTermDocCountError);
out.writeVLong(otherDocCount);
out.writeList(buckets);
}
@Override
protected void setDocCountError(long docCountError) {
this.docCountError = docCountError;
}
@Override
protected int getShardSize() {
return shardSize;
}
@Override
public long getDocCountError() {
return docCountError;
}
@Override
public long getSumOfOtherDocCounts() {
return otherDocCount;
}
@Override
public List<B> getBuckets() {
return buckets;
}
@Override
public B getBucketByKey(String term) {
if (bucketMap == null) {
bucketMap = buckets.stream().collect(Collectors.toMap(Bucket::getKeyAsString, Function.identity()));
}
return bucketMap.get(term);
}
@Override
protected boolean doEquals(Object obj) {
InternalMappedTerms<?,?> that = (InternalMappedTerms<?,?>) obj;
return super.doEquals(obj)
&& Objects.equals(buckets, that.buckets)
&& Objects.equals(format, that.format)
&& Objects.equals(otherDocCount, that.otherDocCount)
&& Objects.equals(showTermDocCountError, that.showTermDocCountError)
&& Objects.equals(shardSize, that.shardSize);
}
@Override
protected int doHashCode() {
return Objects.hash(super.doHashCode(), buckets, format, otherDocCount, showTermDocCountError, shardSize);
}
@Override
public final XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
return doXContentCommon(builder, params, docCountError, otherDocCount, buckets);
}
}